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Home » 7^2 = 25 + 2ab - High Altitude Science

7^2 = 25 + 2ab - High Altitude Science

📅 March 10, 2026 👤 scraface

Mar 10, 2026

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📌 An interactive simulation shows electrons moving through a magnetic field, deflecting by a centripetal force causing circular motion. If an electron moves at 2 × 10⁶ m/s perpendicular to a 0.5 Tesla field and has a charge of 1.6 × 10⁻¹⁹ C and mass 9.1 × 10⁻³¹ kg, what is the radius of its path?

📌 Centripetal force = qvB = mv²/r → r = mv / (qB). Plug in: r = (9.1 × 10⁻³¹ × 2 × 10⁶) / (1.6 × 10⁻¹⁹ × 0.5) = (1.82 × 10⁻²⁴) / (8 × 10⁻²⁰) = 2.275 × 10⁻⁵ m = 22.75 μm.

📌 #### 2.275e-5A primatologist observed that a group of chimpanzees used 3 distinct calls to communicate: a hoot, a scream, and a grunt. Over 5 days, the number of hoots doubled each day starting from 5 hoots on day 1. The number of screams remained constant at 12 per day. The number of grunts tripled each day starting from 2 on day 1. How many total vocalizations were made over the 5 days?

📌 On day 1: hoots = 5, screams = 12, grunts = 2 → total = 5 + 12 + 2 = 19

📌 Day 2: hoots = 5×2 = 10, screams = 12, grunts = 2×3 = 6 → total = 10 + 12 + 6 = 28

📌 Day 3: hoots = 20, screams = 12, grunts = 6×3 = 18 → total = 20 + 12 + 18 = 50

📌 Day 4: hoots = 40, screams = 12, grunts = 18×3 = 54 → total = 40 + 12 + 54 = 106

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